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Permeable hydraulic tunnel lining and manufacturing method

A technology for hydraulic tunnels and manufacturing methods, which is applied in tunnel linings, shaft linings, tunnels, etc., can solve problems affecting structural durability and safe operation, prone to corrosion, and high construction requirements, so as to avoid durability, low cost, The effect of simple design and construction

Active Publication Date: 2016-05-04
浙江兴水科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ordinary reinforced concrete lining must meet the surrounding rock pressure or water pressure. The design is difficult and the construction requirements are high, which will cause unnecessary waste. At the same time, the reinforced concrete is prone to rust due to the erosion of corrosive media such as chloride ions, which affects the structural durability and performance. safe operation

Method used

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  • Permeable hydraulic tunnel lining and manufacturing method
  • Permeable hydraulic tunnel lining and manufacturing method

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Embodiment Construction

[0032] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0033] Such as figure 1 As shown, a permeable hydraulic tunnel lining designed by the present invention includes a cylindrical reinforced grid 1 and a permeable concrete 2 whose section outer diameter is compatible with the hydraulic tunnel inner diameter during the actual application process, wherein the permeable type Concrete 2 is composed of cement, gravel, sand, water, and water-reducing agent, and the amount of cement per cubic meter of permeable concrete 2 is 350kg-450kg, and the weight ratio of cement: gravel: sand: water: water-reducing agent 1: 3~5: 0.5~1: 0.3~0.35: 0.01~0.02; the rib grid in the tubular rib grid 1 is composed of FRP fiber bundles interweaving in the circumferential and longitudinal directions; The surface of each FRP fiber bundle in the shaped rib grid 1 is covered with epoxy resin, and then ...

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Abstract

The invention relates to a permeable hydraulic tunnel lining which is simple in design and structure, is low in cost and is excellent in durability, and accordingly relates to a manufacturing method for the permeable hydraulic tunnel lining. Through the method, in the condition of good surrounding rock integrity, the lining bears no surrounding rock pressure, water pressure in a hydraulic tunnel can penetrate the lining and directly act on the surrounding rock having good integrity, and the lining does not have to bear the water pressure; the roughness of the hydraulic tunnel can be effectively decreased, the water-carrying capacity of the hydraulic tunnel can be improved, and the method has an actual engineering application value; and through FRP fiber bundles introduced in a manufacturing process, the problems of the durability of a reinforced concrete structure, such as corrosion of steel bars, can be avoided.

Description

technical field [0001] The invention relates to a permeable hydraulic tunnel lining and a manufacturing method, belonging to the technical field of hydraulic engineering. Background technique [0002] In water conservancy projects, in order to convey water or discharge floods, closed aqueducts are often excavated through mountains, which are called hydraulic tunnels. If the water flow has a free water surface in the cave, it is called a non-pressure tunnel; A certain water pressure is called a pressurized tunnel, and power generation tunnels are generally pressurized. [0003] After the excavation of hydraulic tunnels, for surrounding rocks with poor integrity, in order to prevent the surrounding rocks from loosening or collapsing, it is necessary to carry out lining or support as soon as possible. Under such working conditions, the lining or support needs to be designed for bearing capacity. Its design and construction requirements are strict, and the cost is relatively hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10C04B28/00
CPCC04B28/00E21D11/10E21D11/107C04B14/02C04B2103/302
Inventor 赵海涛陈育志黄冬辉陈硕周亮亮邸云菲殷新龙黄煜煜杨睿
Owner 浙江兴水科技有限公司
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